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LOS4240-2RLD Datasheet(PDF) 9 Page - Power-One |
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LOS4240-2RLD Datasheet(HTML) 9 Page - Power-One |
9 / 12 page SEP 09, 2005 revised to JUL 17, 2006 Page 9 of 12 www.power-one.com LOS, LOR, LOK4000 Series Data Sheet DIN-Rail Mountable AC-DC (DC-DC) Converters Installation Instructions These converters are components, intended exclusively for inclusion within other equipment by an industrial assembly operation or by professional installers. Installation must strictly follow the national safety regulations in compliance with the enclosure, mounting, creepage, clearance, casualty, markings and segregation requirements of the end-use application. Connection to the system shall be according to Terminal allocation and Mechanical Data. Check for hazardous voltages before altering any connection. Ensure that a converter failure (e.g. by an internal short-circuit) does not result in a hazardous condition. See also Safety of operator accessible output circuit. The phase input (L ) is internally fused by a 1.6 A slowblow type. It is not customer-accessible. This fuse is designed to protect the unit in case of overcurrent. Option F or external fuses in the wiring to one or both input pins (L and/or N ) may therefore be necessary to ensure compliance with local requirements. A second fuse in the wiring to the terminal N is needed if: • Local requirements demand an individual fuse in each source line • Neutral and earth impedance is high or undefined • Phase and neutral of the mains are not defined or cannot be assigned to the corresponding termials (L to phase and N to neutral). Note: Do not open the converters, or guarantee will be invalidated. Make sure that there is sufficient air flow available for convection cooling. This should be verified by measuring the case temperature when the unit is installed and operated in the end-use application. The maximum specified case temperature TC max shall not be exceeded. Isolation The electric strength test is performed in the factory as routine test in accordance with EN 50116 and IEC/EN 60950and should not be repeated in the field. Power-One will not honor any guarantee/warranty claims resulting from electric strength field tests. Caution: Testing by applying AC voltages will result in high and dangerous leakage currents flowing through the Y-capacitors (see fig. Block diagram). Safety and Installation Instructions Terminal Allocation The terminal allocation table defines the electrical potentials of the AC-DC converters. For mechanical positions of the terminals see: Mechanical Data. Standards and Approvals The converters correspond to class I equipment. All models are UL recognized according to UL 1950, UL recognized for Canada to CAN/CSA C22.2 No. 950-95 and TÜV, approved to IEC/EN 60950 standards. LOR and LOS are UL 508-listed components. The converters have been evaluated for: • Building in • Double or reinforced insulation or an earthed part between input and output. • Basic insulation between input and earth • Functional insulation between output and earth • The use in a pollution degree 2 environment • Connecting the input to a primary circuit with overvoltage category II. The converters are subject to manufacturing surveillance in accordance with the above mentioned standards. For details see the Declaration of Conformity (last 2 pages). Protection Degree IP 20: All models. Table 9: Terminal allocation Terminal Electrical LOK/LOR/LOS 1 Input L 2 Protective earth 3 Input N 4 D/Output (positive) D /+ 5 Output (positive) + 6 Output (negative) – 7 Output (negative) – 8 R input or open R / n.c. Table 10: Isolation Characteristic Input to Input to Output to Unit protective earth output protective earth Electric Actual factory test 1 s 2.1 2.1 1 1.4 kVDC strength AC test voltage equivalent 1.5 1.5 1 1.0 kVAC test voltage to actual factory test Insulation resistance at 500 VDC >300 >300 >100 M Ω 1 In accordance with EN 50116 and IEC/EN 60950 only subassemblies are pre-tested with 4.3 kVDC or 3.0 kVAC. |
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